More than 110,000 students took the AP Biology test in 2004. Students and AP teachers are always looking for more practice tests. Other AP study aids emphasize subject review; this book focuses on practice tests. It has an exam overview that tells students what to expect, strategies for the multiple-choice and essay sections, and five full-length tests to help students build test-taking skills and confidence. Teachers can use it to simulate the AP exam in the classroom; students can use it to practice independently. There are answers and explanations to every test question, so students can also pinpoint weak areas for further study.